One-dimensional carbon nanotube–Fe x C y nanocrystal composite

作者：Zhenzhong Yong, Zhiyuan Zhu, Zhenxia Wang, Jiangang Hu, Pan Qiangyan · 发表于：Nanotechnology · 年份：2007 · DOI：10.1088/0957-4484/18/10/105602 · 被引用次数：15 · 研究领域：Carbon Nanotubes in Composites、Graphene research and applications、Electromagnetic wave absorption materials

Ferromagnetic material–carbon nanotube composites are promising magnetic nanowires that have recently been prepared, with many possible applications. In this paper, using carbon nanotubes as a nucleate template, one-dimensional carbon nanotube–FexCy nanocrystal composites were successfully synthesized by the chemical combination of sputtered Fe atoms and carbon nanotubes at high temperature. The structural characterization, by scanning electron microscopy, x-ray diffraction and high-resolution transmission electron microscopy, reveals that FexCy nanocrystal particles (5–20 nm diameter) were uniformly embedded in the walls of the carbon nanotubes with a high density. In addition, the formation mechanism of the composite is discussed.